My 20 yr old cat seems to have her back legs collapse when she's walking. It's been happening on and off. But I'm really afraid. I'm thinking taurine, but I'm just starting critical immune defense to see if I can help her immune system and help her get stronger. She beat diabetes in 2022. She's hap

My cat back legs collapse when she's walking around. She tries not to notice it and keeps walking or dragging herself kind of. Could this be taurine deficiency or does anyone one know how I can help her? She is 20 yrs old. She beat diabetes in 2022. She was declining fast, so I started salmon oil in dec. Collagen shortly after 100% pumpkin first for digestion. Shes thriving, except i started critical immune defense just 2 days ago. Should i stop it. It was hapoening before but not this bad. Im stopping it. If anybody knows please help with your knowledge or experience. Thank you. The vet and e agreed we would just make her comfortable, but if someone knows something please speak up I appreciate you